build.gradle

@@ -11,7 +11,6 @@ repositories {
 
 dependencies {
     implementation 'org.ejml:ejml-all:0.41'
-    implementation 'org.knowm.xchart:xchart:3.8.1'
     implementation 'com.opencsv:opencsv:5.6'
     testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.2'
     testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.2'

src/main/java/Utilities.java

@@ -7,45 +7,14 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
-import java.util.Random;
 
 public class Utilities {
-    private static final double STANDARD_GAUSSIAN_FACTOR = 1.0d;
-
     public static SimpleMatrix ones(int rows, int columns) {
         SimpleMatrix mat = new SimpleMatrix(rows, columns);
         Arrays.fill(mat.getDDRM().data, 1);
         return mat;
     }
 
-    public static SimpleMatrix gaussianMatrix(int rows, int columns, double mean, double stddev, double factor) {
-        SimpleMatrix mat = new SimpleMatrix(rows, columns);
-        Random random = new Random();
-
-        for (int i = 0; i < mat.getNumElements(); i++) {
-            mat.set(i, factor * random.nextGaussian(mean, stddev));
-        }
-
-        return mat;
-    }
-
-    public static SimpleMatrix gaussianMatrix(int rows, int columns, double mean, double stddev) {
-        return gaussianMatrix(rows, columns, mean, stddev, STANDARD_GAUSSIAN_FACTOR);
-    }
-
-    public static double[] linspace(double start, double end, int num) {
-        double[] result = new double[num];
-        double stepSize = Math.abs(end - start) / num;
-        double nextEntry = start;
-
-        for (int i = 0; i < num; i++) {
-            result[i] = nextEntry;
-            nextEntry += stepSize;
-        }
-
-        return result;
-    }
-
     public static List<List<String>> readCSV(String filename) {
         List<List<String>> entries = new ArrayList<>();
         try (CSVReader csvReader = new CSVReader(new FileReader(filename))) {